MySQL connection denied

[stella luna]

org.apache.jasper.JasperException: Unable to get connection, DataSource  
invalid: "Unable to connect to any hosts due to exception:  
java.security.AccessControlException: access denied  
(java.util.PropertyPermission file.encoding rea

exerpt from my web.xml file
  <context-param>
    <param-name>
      javax.servlet.jsp.jstl.sql.dataSource
    </param-name>
    <param-value>
       
jdbc:mysql:///tgrant_com_- 
_Example,com.mysql.jdbc.Driver,username,passwrod
   </param-value>
  </context-param>

Anyone have any clue? I have Ensim 3.7 pro, and i suspect that it is  
putting some sort of sercurity restraints on my jvm?

thanks..